1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2020 Intel Corporation
 4 */
 5
 6#ifndef _INTEL_DPLL_H_
 7#define _INTEL_DPLL_H_
 8
 9#include <linux/types.h>
10
11struct dpll;
12struct drm_i915_private;
13struct intel_atomic_state;
14struct intel_crtc;
15struct intel_crtc_state;
16enum pipe;
17
18void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv);
19int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
20				  struct intel_crtc *crtc);
21int intel_dpll_crtc_get_shared_dpll(struct intel_atomic_state *state,
22				    struct intel_crtc *crtc);
23int vlv_calc_dpll_params(int refclk, struct dpll *clock);
24int pnv_calc_dpll_params(int refclk, struct dpll *clock);
25int i9xx_calc_dpll_params(int refclk, struct dpll *clock);
26u32 i9xx_dpll_compute_fp(const struct dpll *dpll);
27void vlv_compute_dpll(struct intel_crtc_state *crtc_state);
28void chv_compute_dpll(struct intel_crtc_state *crtc_state);
29
30int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
31		     const struct dpll *dpll);
32void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
33
34void chv_enable_pll(const struct intel_crtc_state *crtc_state);
35void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
36void vlv_enable_pll(const struct intel_crtc_state *crtc_state);
37void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
38void i9xx_enable_pll(const struct intel_crtc_state *crtc_state);
39void i9xx_disable_pll(const struct intel_crtc_state *crtc_state);
40bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
41			struct dpll *best_clock);
42int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
43
44void assert_pll_enabled(struct drm_i915_private *i915, enum pipe pipe);
45void assert_pll_disabled(struct drm_i915_private *i915, enum pipe pipe);
46
47#endif